What Are Peptides? A Simple Guide
Peptides are small messengers that your body already makes and uses every day. This guide explains what they are, what they do, and why we use them at Mind Mood Microbes. It is written in simple language, so you can read it quickly or translate it easily.
What peptides are
A peptide is a very small protein. It is a short chain of amino acids, usually between 2 and 50.
Amino acids are the building blocks of all proteins. A long chain makes a protein, such as the collagen in your skin. A short chain makes a peptide.
Because peptides are small, they can move through the body and carry messages. You can think of a peptide as a key. It fits one specific lock on a cell, and when it fits, the cell knows what to do.
What peptides do in your body
Your body makes thousands of peptides. Each one has a specific job. Some well-known examples:
Insulin tells your cells to take in sugar from the blood.
GLP-1 tells your brain that you are full after eating.
Endorphins reduce pain and improve mood.
Oxytocin supports bonding and calm.
Defensins help your gut and skin fight harmful microbes.
Other peptides tell the body to calm inflammation, repair tissue, or protect the lining of the gut. When the body is under stress for a long time, from illness, infection, or poor sleep, it may need extra support with these jobs.
Why we use peptides
We use peptides to send the body a clear, specific signal: calm inflammation, repair the gut lining, protect cells from stress.
Most supplements give the body raw materials, such as vitamins, minerals, or amino acids. A peptide is different. It is an instruction. The peptides we use are copies of the body's own messengers, or small pieces of them.
This is helpful for people who feel stuck. Many of our clients have tried a long list of supplements and still have brain fog, gut symptoms, or fatigue. Often the common theme is inflammation and oxidative stress that will not settle. Peptides let us work on that directly.
Some of the peptides we use most:
BPC-157. Based on a protective protein found naturally in stomach juice. We use it to support repair of the gut lining.
KPV. A small piece of a natural hormone that calms inflammation. We use it for inflammation in the gut.
Larazotide. Helps the tight connections between gut cells stay closed. We use it for leaky gut.
GHK-Cu. Found naturally in human blood, at levels that fall as we age. We use it to support repair and antioxidant defenses.
We also use peptides to improve sleep quality or reduce the effects of sleep deprivation. We might use peptides to improve energy and subsequently encourage witless. We choose peptides for each person, based on symptoms and lab results. We do not use the same plan for everyone.
How peptides are taken
Peptides come in a few forms. We choose the form that fits the person and the goal.
By mouth. Capsules or liquids. This is often the best choice for gut peptides, because the peptide goes directly to the gut.
By injection. A very small needle under the skin, similar to an insulin injection. Some peptides only work this way, because the stomach would break them down.
On the skin or in the nose. Creams or sprays, for some peptides.
We start with one peptide at a low dose and increase slowly. This matters most for sensitive people, who react strongly to new supplements. Starting slowly lets us see clearly what helps.
What the research says
Peptides have been used in medicine for about 100 years. Insulin was the first, in the 1920s. Today many approved medicines are peptides, including the GLP-1 medicines used for diabetes and weight.
The peptides we use for gut repair and inflammation are newer, and the amount of research is different for each one. Larazotide has been tested in human clinical trials. BPC-157 and KPV have encouraging laboratory and animal research, and a growing amount of experience from practitioners. In some cases there is more information about certain peptides in clinical data vs. North American Research. For example, GLP-1s are being used widely off label for long COVID and Dysautonomia related inflammation.
This is why we use peptides carefully:
We match each peptide to a clear reason, based on your symptoms and lab results.
We start low and go slowly.
We track your symptoms and repeat labs, so we know if it is working.
We stop or change the plan if it is not helping.
Common questions
Are peptides hormones or steroids? No, peptides are not steroids. Some hormones are peptides, such as insulin, but the peptides we use for gut and inflammation are not hormone replacement.
Are peptides the same as collagen powder? Collagen powder contains peptides from food, and the body uses them mostly as building material. The peptides in this guide are specific messengers, used in very small amounts.
Are peptides natural? The peptides we use are made in a laboratory. They are designed to match messengers the body already makes, or small pieces of them.
How long until I notice a change? It depends on the person and the peptide. Some people notice changes in the first weeks. For others it takes longer. We review your progress regularly.
Can I take peptides with my other supplements? Usually yes, but tell us everything you take, including medications. We check each combination for you.
Next step
If you are new to peptides, you can join our newsletter or book a registration call. We will explain which peptides may fit your case, and which ones we would avoid.
This guide is for education. It is not medical advice. Please speak with your practitioner before starting any peptide.
